Daniel Corujo

Daniel Corujo
University of Aveiro | UA · Department of Electronics, Telecommunications and Informatics

PhD

About

122
Publications
24,422
Reads
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1,220
Citations
Introduction
Daniel Corujo is an Assistant Professor at the University of Aveiro and a Researchear at the Telecommunications Institute, Aveiro, Portugal. Daniel does research in Computer Communications (Networks) and Telecommunications.

Publications

Publications (122)
Conference Paper
Full-text available
This paper proposes and validates a Interdomain Network Slicing framework for verticals, allowing them to directly participate in the establishment and control of end-to-end Communication Services deployment across multiple inter-operator domains. The framework progresses the means made available by different standards and research initiatives to e...
Article
Full-text available
Private 5G networks has become a popular choice of various vertical industries to build dedicated and secure wireless networks in industry environments to deploy their services with enhanced service flexibility and device connectivity to foster industry digitalization. This article proposes multiple multi-domain solutions to deploy private 5G netwo...
Article
The adoption of Software Defined Networking (SDN) has encountered resistance mainly due to its disruptive nature for current deployed networks. In order to allow a smoother transition of SDN into production networks and take advantage of SDN’s characteristics, a mix of SDN with traditional networks, or Hybrid SDN Networks, can be deployed, paving t...
Article
Edge computing is crucial for many of the new 5G business vertical use-cases, such as Industry 4.0 robots, safety-critical communications, and highly-efficient smart grids. However, the tighter integration of such impactful businesses into previously core network operations raises significant security, trustworthiness, and reliability issues. A bus...
Preprint
Full-text available
This paper presents an economical assessment of the benefits of introducing 5G technologies into pilot use cases pertaining to the railroad transportation and energy sectors. For each of the pilots, undergone by EFACEC Engenharia e Sistemas and EFACEC Energia, respectively, under the scope of the H2020 5Growth project, evaluates the expenditure and...
Article
Full-text available
This article introduces the key innovations of the 5Growth service platform to empower vertical industries with an AI-driven automated 5G end-to-end slicing solution that allows industries to achieve their service requirements. Specifically, we present multiple vertical pilots (Industry 4.0, transportation, and energy), identify the key 5G requirem...
Article
Full-text available
This paper presents a framework for improved and efficient video delivery in scenarios featuring users moving at high speed (e.g., trains), leveraging on dynamic Multi-access Edge Computing (MEC) enabled 5G network capabilities. The framework is location-aware and it allows the content to efficiently follow the users, conserving load usage on netwo...
Article
Automatic animal monitoring can bring several advantages to the livestock sector. The emergence of low-cost and low-power miniaturized sensors, together with the ability of handling huge amounts of data, has led to a boost of new intelligent farming solutions. One example is the SheepIT solution that is being commercialized by iFarmtec. The main ob...
Article
Full-text available
Key Performance Indicators (KPIs) are a higher‐level characterization of the performance of a network slice, meant to be assessable at any time. Bodies such as the GSM Alliance have proposed the use of KPIs, including, but not limited to, latency, throughput, power consumption, and security. However, while latency, throughput, and power consumption...
Article
Emerging concepts such as Software Defined Networking (SDN), Network Function Virtualization (NFV) and Network Slicing have been pushing new and flexible ways for providers to manage their services through the simplification of the hardware, allowing a faster deployment of new services and the optimization of their capital and operational expenses....
Article
Full-text available
Online access to information while on the move has conferred businesses with the capability to be constantly accessible and in operation, independently of geographical area or time zone. There are situations, however, that demand technical solutions for specific scenarios, such as controlled access to corporate‐based content. Virtual Private Networ...
Conference Paper
This paper proposes a slice management and orchestration framework for abstracting the instantiation of end-to-end network slices, which are composed by a chain of both physical and virtual network functions. In this line, the proposed SliMANO framework is a plug-in based system that requests network resources and coordinates the interaction among...
Conference Paper
This paper proposes a framework where Customer Premises Equipments (CPEs) are dynamically instantiated, by leveraging Software Defined Networking (SDN) and Network Function Vitualisation (NFV), in the cloud as a chain of con-tainerised virtual network functions (VNFs). Resulting virtual CPE instances (i.e., vCPEs) are organised in clusters and a Ma...
Conference Paper
This paper presents a framework for improved mobile video delivery in high speed vehicles, integrating Network Function Virtualization, Software Defined Networking and Multi-access Edge Computing (MEC), with user mobility and service consumption context for enabling the dynamic instantiation of video services in edge-positioned virtualized Content...
Article
Full-text available
Network slicing emerges as a key technology in next generation networks, boosted by the integration of software‐defined networking and network functions virtualization. However, while allowing resource sharing among multiple tenants, such networks must also ensure the security requirements needed for the scenarios they are employed. This letter pre...
Conference Paper
Full-text available
The fact that most IoT solutions are provided by third parties, along with the pervasiveness of the collected data, raises privacy and security concerns. There is a need to verify which data is being sent to the third party, as well as preventing those channels from becoming an exploitation avenue. We propose to use existing API definition language...
Article
Full-text available
This paper proposes a framework that optimizes network slicing provisioning in over‐the‐top (OTT) scenarios, by reducing occupied resources of slices from where the User Equipment (UE) handovers from. To achieve this, the framework leverages an existing Software Defined Networking (SDN)‐based UE virtualisation scheme, which allows to instantiate in...
Article
Full-text available
The fifth generation (5G) telecommunications network aims not only to enhance traffic performance and allow efficient management, but also to enable it to dynamically and flexibly adapt to the traffic demands of different vertical scenarios. In order to support that enablement, the underlying network procedures (i.e., network functions) are being v...
Conference Paper
Full-text available
The heterogeneity of 5G requirements commands more complex network architectures, imposing the need for network orchestration. ETSI NFV MANO is the standard which defines a common framework for vendors and operators to integrate their orchestration efforts. In this paper, we evaluated how an ETSI NFV MANO compliant orchestrator (OSM) fares while or...
Article
Clean-slate network architectures have been proposed in the recent years as an alternative to the current IP-based architecture. However, a complete replacement of the current Internet architecture is a difficult and lengthy process. A heterogeneous Future Internet where several network architectures coexist simultaneously can be expected. Nonethel...
Article
Full-text available
Ultradense Networks (UDNs) seek to scale the 5th-Generation mobile network systems at unforeseen amounts of networks, users, and mobile traffic. We believe that the Wi-Fi sharing service is an asset in expanding 5G UDN capacity requirements for higher coverage and ubiquitous wireless broadband connectivity. However, the limitations of the Wi-Fi sha...
Conference Paper
Full-text available
This paper provides a first assessment of a framework that allows network operators to use advanced slicing mechanisms to establish bandwidth restrictions to the different flows of a multi-interfaced User Equipment (UE), even when it moves between different access technologies. The objective is to prevent individual flows from overwhelming resource...
Conference Paper
Full-text available
The foreseen exploding number of devices connected to the mobile network has been pushing op- erators to look for mechanisms to transparently offload their data. However, such procedures need to consider the different demands from users’ traffic and involved access networks. Towards that end, Network Slicing has been proposing a logical partition o...
Poster
The concept of reliability in traditional static networking environment must be transformed to adapt to the highly dynamic future virtualized networking environment. Lightweight virtualization such as Containers and Unikernels are introduced to make server footprint smaller and increased performance. Because of faster booting time and reduced image...
Conference Paper
Full-text available
In this paper, we propose an architecture based on NFV and SDN which allows to balance traffic analysis techniques using a Classifier. It steers flows to the appropriate Service Function Chaining (to open traffic or not) according to network requirements (such as, effectiveness, flexibility, scalability, performance, and privacy). The SSL/TLS traff...
Conference Paper
This paper presents a framework that integrates Software Defined Networks (SDN) and Network Functions Virtualisation (NFV) to migrate operational aspects of both the network’s Points of Attachment (PoA) and Mobile Nodes (MN) into the cloud. The SDN Controller is used as an enhanced mobility management entity by integrating the capability to instant...
Chapter
Full-text available
5G research has been looking for flexible, dynamic and low-latency network architectures. In this regard, Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) have been key enablers for the next generation networks. Although SDN was originally designed for wired networks, such as data-centre networks, its popularity in the r...
Article
Full-text available
Mobile networks today see increasingly large numbers of connected user equipments (UE), allowing users to go beyond voice calling and tap into rich on-line services. Parallel to this evolution, other devices, such as TV’s, home automation or even Internet of Things controllers, have become integrated with connectivity capabilities, allowing them to...
Conference Paper
The way we use and access the Internet has been changing since its creation, evolving to more dynamic traffic patterns and following new consumption trends such as IP video in mobile scenarios. New requirements towards the underlying network rise, particularly regarding to mobility management support in wireless heterogeneous environments. In this...
Article
Full-text available
The Internet of Things (IoT) has been enabling the deployment of new scenarios where the physical and digital worlds interact in unprecedented new ways. These interactions have manifested inadequacies of existing infrastructures and protocols, showcasing the need for evolutions, or more disruptive technologies. New architectures, such as Named Data...
Article
Full-text available
Information Centric Networking (ICN) is an emerging research topic aiming at shifting the Internet from its current host-centric paradigm towards an approach centred around content, which enables the direct retrieval of information objects in a secure, reliable, scalable, and efficient way. The exposure of ICN to scenarios other than static content...
Conference Paper
Full-text available
The increasing number of mobile devices exploring wireless data through different technologies has been developing the potential for interoperability scenarios in mobile opera- tors. However, each technology operates distinctively, creating a complex integration challenge. As such, 5G research has been exploring different concepts for bringing more...
Article
Full-text available
Context awareness is an important enabler for next generation of Mobile Core Networks (MCN). However there exist a number of challenges in this regard. For example how to develop a framework which 1) is able to generate context richer than what is available today; 2) allows reusability of context across the network; 3) provides a mechanism for expo...
Article
Full-text available
The journey towards the deployment of next generation networks has recently accelerated, driven by the joint effort of research and standards organisations. Despite this fact, the overall picture is still unclear as prioritization and understanding on several key concepts are not yet agreed by major vendors and network providers. Network Slicing is...
Article
Full-text available
In view of evolving the Internet infrastructure, Information-Centric Networking (ICN) is promoting a communication model, which is fundamentally different from the traditional IP address-centric model. The ICN approach consists in the retrieval of content by (unique) names, regardless of origin server location (i.e., IP address), application and di...
Article
The continuous flow of technological developments in communications and electronic industries has led to the growing expansion of the Internet of Things (IoT). By leveraging the capabilities of smart networked devices and integrating them into existing industrial, leisure and communication applications, the IoT is expected to positively impact both...
Article
This paper explores the use of Information-Centric Networking (ICN) to support management operations in IoT deployments, presenting the design of a flexible architecture that allows the appropriate operation of IoT devices within a delimited ICN network domain. Our architecture has been designed with special consideration to naming, interoperation,...
Conference Paper
Full-text available
The connectivity capabilities of mobile wireless devices have been forever changing how networks operate, increasingly demanding resources from the network. This places a need for novel mobile network architectures and mechanisms, targeting tomorrows challenges, as envisaged by 5G networks research efforts. This paper sheds a light on an important...
Conference Paper
Full-text available
Implementing and deploying virtualized Evolved Packet Core (vEPC) is a prioritized objective of operators and vendors towards a 5G network, enabling flexible network management while maximizing its availability based on virtualization aspects. However, current design and deployment initiatives for 5G do not consider that their adoption by operators...
Conference Paper
Full-text available
IIoT (Industrial Internet of Things) cloud applications require reliable, fault-tolerant networks, supporting real-time guarantees and allowing interaction with other applications already existing in the datacenter. The Software Defined Networks (SDN) paradigm is especially suited for the management of the network cloud because of its fine grained...
Conference Paper
Full-text available
IIoT (Industrial Internet of Things) cloud applications require reliable, fault-tolerant networks, supporting real-time guarantees and allowing interaction with other applications already existing in the datacenter. The Software Defined Networks (SDN) paradigm is especially suited for the management of the network cloud because of its fine grained...
Conference Paper
Full-text available
5G, as the next generation telecommunications architecture that aims to tackle the explosion of connected devices, services and access technologies, will heavily rely on Software Defined Mechanisms (SDN) to compose its underlying mechanisms. Notwithstanding, despite the need for novel control procedures to support and optimize increasingly challeng...
Article
Full-text available
In this paper, we first further investigate the use of random decision policies for caching schemes, or probabilistic caching, in Content-Centric Networking (CCN). Our main objective is to provide a mathematical model for the combination of random cache decision and least recently used (LRU) replacement policy in the content store of CCN, called LR...
Article
Full-text available
Information-Centric Networking (ICN) has recently emerged as a promising Future Internet architecture that aims to cope with the increasing demand for highly scalable and efficient distribution of content. Moving away from the Internet communication model based in addressable hosts, ICN leverages in-network storage for caching, multi-party communic...